Vacuum pump



Nov. 22, 1927.

H. V. RINGGENBERG VACUUM PUMP Fild Feb. 5, 1927 7 M 0 m N Inventor 155/4/ 3 77800:?

Q By WW and discharge pipe 22. j V v r p Leading into thebody 5iis avaeuump1pe line 23 and in operation when a vacuum 1s created in the'body5 above the diaphragm enema Nov. 22, rear.

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HOWELL V. RINGGENBERG, or RQGHESTEE, rai'nivnso'ra, AssIenon onoNE-HanF"ro nor as. Y'OESTERREIQH, or noonns'rnn, M'rnivn'so'ra VACUUM PUMP.

Application filed Feb'ruary 5, 1927. Serial No. 166,210.

This invention relates to new and useful improvements in vacuum pumpsand has for its primary object to provide a pump of this character thatis extremely "simple of construction, inexpensive of manufacture andinstallation, and on'ethat may be'used in the pumping of oil, water, orother fluid.

With the foregoing and other objects in The figure is a vertical sectionthrouglra vacuum pump constructed in accordance with the presentinvention. j.

Now having particular reference to the drawing, 5 designates acylindrical body open at its upper and lower ends and externally screwthreaded at said ends as disclosed in the drawing. Threaded upon theupper end of this body 5 is a flanged lid 6, while threaded upon thelower open end of said body is a circular chamber 7 formed internallyadjacent its upper end with a circumferential flange 9 for the purposeof securing a flexible circular diaphragm 10 between the body 5 and saidchamber 7. Arranged through the center of the diaphragm 10 in an airtight manner is a vertical rod 11, the upper end of which projects intothe relatively large bore 12' of a circular nipple 13 upon the upper endof which is anranged a cap 14 having air openings 15 in the top wallthereof. For the purpose of at times closing the bore 12 of the nipple13 to the atmosphere, there is provided a ball valve 16 while arrangedbetween this ball and-the upper end of the rod 11 is a small expansiblecoil spring 17 for a purpose hereinafter more fully described.

Surrounding the rod 11 between the nip pic 13 and said diaphragm 10 isanexpansible coil spring 18, while formed or disposed within the chamber7 at opposed points are conventional inlet and exhaust check valves 19and 20,'respect1vely, that have communication with a fluid intake 21fluid in the lower compartment 10 the ball 16 will tightly close thebore 12 of the nipple 13 and at the same time the diaphragm l0 will beraised. During the raising. of the diaphragm, the rod 11 will moveupwardly for compressing the spring 17l hetweenthe rod and said ball andwhen said spring 18 compressedto a certain de gree, the ball will becaused to rise from the nipple hrealiing the vacuum. During the raisingof thediaphragm the fluid will be drawn into the chamber "7 through thevalve 19. As soon asthe vacuum becomes broken the spring 18'w1ll causethe return action o'f'the diaphragm 1O untilthe hall 1.6 closes thepassage through the nipple 13, at

Whichthne the action repeats itself. l)uringthe return of the diiaphragmthe fluid is obviously ejected through the exhaust check valve andexhaust pipe 22.

It will, thus be seen that I have provided ahighly novel, simple, andeficient vacuum pump that is well adapted for all the purposesheretoiore designated, even though I have herein shown and described theinvention as consisting of certain detail structural elements it isnevertheless'to be understood that some changes may be made thereinwithout affecting the spirit and scope of the appended claims.

Having thus described theinvention, what and affluid storage, a normallyclosed air inlet valve associated with the upper eompartment, automatlcmeans for opening the airinlet valvewhen the diaphragm has" been raisedto a predetermined degree for breaking the vacuum within theuppercompartment,. and means for returning the di- .aphragmwhen thevacuum 1s broken tor allowing said valve to close whereby the vacuum isagain created in the uppercompartment, and simultaneously forcing thethrough the exhaust valve.

2' In a hollow body open at its upper and lower ends, alid for the upperopen end of the its outwardly pump of the class described, a-

body, a chamber detachably secured on the open lower end of the body, adiaphragm secured between the open lower end of the body and saidchamber whereby to form a partition between the body and the cham ber,and a vacuum compartment in the 1101- -low body, a vacuum pipecommunicating with the vacuum compartment, inlet and exhaust valvesarranged in the chamberand communicating respectively with the fluidsupply and fluid storage, a normally closed air inlet valve for thevacuum compartment arranged in said lid, automatic means for opening theair inlet valve when the diaphragm has been raised to a predetermineddegree for breaking the vacuum in the vacuum compartment, and means forreturning the diaphragm when the vacuum is broken for allowing said airinlet valve to close whereby the vacuum is again created in saidcompartment, and simultaneously forcing the fluid in thechamberoutwardly through the exhaust valve.

3. In a pump of the class described, a hollow body open at its upper andlower ends, a lid for the upper open end of the body, a chamberdetachably secured on the open lower end of the body,'a diaphragmsecured between the open lower end of the body and said chamber wherebyto form a valves arranged in the chamber and communicating respectivelywith the fluid supply and fluid storage. a nipple carried by the lid andcommunicating with the vacuum compartment, a ball valve normally seatedon the nipple for closing the bore thereof to prevent the admission ofair to the vacuum compartment, a rod extending vertically in the hollowbody and the chamber and earried by the diaphragm for movement thercwith, cooperating means between the upper end of the rod and said ballvalve for opening the air inlet valve when the diaphragm has beenarranged to a predetermined degree for breaking the vacuum within thevacuum compartment, and an expansible coil spring for returning thediaphragm and rod to their initial positions when the vacuum is brokento allow the air inlet valve to close to again create the vacuum in thevacuum compartment, and

HOlVELL V. RINGGENBERG.

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